Mozilla今天再次更新了Firefox 27分支，并将版本号提升至27.0.1，通常这种版本号意味着对正式版的一次小型修正，例如本次就主要提升了一些运行脚本时的稳定性，同时添加了对TLS 1.2的支持。

What’s New

• FIXED

  27.0.1 - Fixed stability issues with Greasemonkey and other JS that used ClearTimeoutOrInterval

• FIXED

  27.0.1 - JS math correctness issue (bug 941381)

• NEW

  You can now run more than one service at a time with Firefox SocialAPI, allowing you to receive notifications, chat and more from multiple integrated services

• NEW

  Implemented support for TLS 1.2 (RFC 5246)

• CHANGED

  Added support for SPDY 3.1 protocol

• DEVELOPER

  Ability to reset style sheets using 'all:unset'

• DEVELOPER

  You can now choose to deobfuscate javascript in the debugger (see 762761)

• DEVELOPER

  Added support for scrolled fieldsets (see 261037)

• DEVELOPER

  Implemented allow-popups directive for iframe sandbox, enabling increased security (see 766282)

• DEVELOPER

  CSS cursor keywords -moz-grab and -moz-grabbing have been unprefixed (see 880672)

• DEVELOPER

  Added support for ES6 generators in SpiderMonkey (see blog post)

• DEVELOPER

  Implemented support for mathematical function Math.hypot() in ES6 (see 896264)

• HTML5

  Dashed line support on Canvas (see 768067)

• FIXED

  Get Azure/Skia content rendering working on Linux (see 740200)

• FIXED

  Various security fixes